[c-nsp] Inter-area Summarization problem on Nexus 9508

[vkasturi@gmail.com]

Sent from my HTC

----- Reply message -----
From: "Brett Frankenberger" <rbf+cisco-nsp at panix.com>
To: "Brian Turnbow" <b.turnbow at twt.it>
Cc: <cisco-nsp at puck.nether.net>
Subject: [c-nsp] Inter-area Summarization problem on Nexus 9508
Date: Fri, Nov 17, 2017 8:23 PM

On Thu, Nov 16, 2017 at 02:24:17PM +0100, Brian Turnbow wrote:
> Hi,
> 
> > Dears,
> > 
> >  Anyone know what is wrong with the below range ?
> 
> Yep, host bits are set 
> You need to put in the network

X.X.X.80 is a valid network for a /28.

> > router ospf 386
> >   vrf AAA
> >     area 0.0.0.1 stub no-summary
> > 
> > NX9KB9002(config-router-vrf)#     area 1 range 10.203.165.80/28
> > Invalid range, host bits are set

CSCve91311, which has been fixed.

The parser truncates the prefix string to 15 characters, which is the
longest possible IP address (but not the longest possible IP address
plus mask).

"10.203.165.80/28" is 16 characters.  When it gets truncated to 15
characters, it becomes "10.203.165.80/2".  Which does have host bits
set and is invalid.


-- Brett
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